A centerless cylindrical grinding protection structure

Abstract

The utility model discloses a centerless outer circle grinding protection structure belongs to centerless grinding processing technical field, including the base, the both sides fixed mounting of base's top have the guide pulley shield and the grinding wheel shield, the guide pulley shield is rotatoryly installed with the guide wheel, the grinding wheel shield is rotatoryly installed with the polishing grinding wheel, be provided with the splash -proof mechanism between the guide wheel with the polishing grinding wheel, the splash -proof mechanism is provided with the supporting plate just below, the both sides of supporting plate are provided with the inlet and outlet material shield, through the design with the synchronous slow rotation of the splash -proof mechanism of guide pulley, collect the net in the rotation, and the dangerous object net of sputtering out the debris, big particle size sundries etc.

Description

Technical Field

[0001] This utility model relates to the field of centerless grinding technology, and in particular to a protective structure for a centerless cylindrical grinder. Background Technology

[0002] As a high-efficiency and precision grinding machine, the centerless cylindrical grinding machine presents several potential hazards due to its high-speed rotating grinding wheel, guide wheel, and rapidly moving workpiece (grind wheel breakage, workpiece ejection, grinding debris splashing, coolant spraying, noise, dust, etc.). Therefore, its protective structure is crucial and is a core element in ensuring operator safety and stable equipment operation.

[0003] Existing centerless cylindrical grinding machines typically have protective covers around the grinding wheel and guide wheel, but lack a protective structure directly above the workpiece. This allows debris to be easily ejected at high speed from the opening, potentially causing injury to the operator.

[0004] To address the aforementioned issues, a protective structure for centerless cylindrical grinding is proposed. Utility Model Content

[0005] The main purpose of this utility model is to provide a protective structure for centerless external cylindrical grinding, which solves the problems mentioned in the background art.

[0006] The objective of this utility model can be achieved by adopting the following technical solution:

[0007] A protective structure for a centerless cylindrical grinder includes a base. Guide wheel covers and grinding wheel covers are fixedly installed on both sides of the top of the base. A guide wheel is rotatably installed inside the guide wheel cover, and a grinding wheel is rotatably installed inside the grinding wheel cover. A splash-proof mechanism is provided between the guide wheel and the grinding wheel. A support plate is provided directly below the splash-proof mechanism. Inlet and outlet covers are provided on both sides of the support plate. The splash-proof mechanism includes a rotating frame rotatably mounted to the inlet and outlet covers via bearings. A collection net is fixed around the inner wall of the rotating frame. A transmission assembly is sleeved on the drive shaft of the rotating frame. A striking assembly is fixed on one side of the outer wall of the inlet and outlet covers.

[0008] Furthermore, the transmission assembly consists of a belt and pulleys, with two sets of pulleys respectively mounted on the shaft of the rotating frame and the shaft of the guide wheel.

[0009] Furthermore, the striking assembly includes a spring cover fixed to the outer wall of the feed / discharge cover, a spiral spring is compressed inside the spring cover, and a rotating shaft is welded and fixed at the center of the spiral spring. The rotating shaft passes through the spring cover and is rotatably mounted.

[0010] Furthermore, a dial lever is screwed to one end of the outer side of the rotating shaft, and the dial lever is in movable contact with the rotating frame.

[0011] Furthermore, a grinding component is placed on the pallet, which is in frictional contact with both the grinding wheel and the guide wheel.

[0012] Furthermore, a coolant pipe is fixed through the inner wall of the inlet and outlet shroud, and one end of the coolant pipe is connected to a spray pipe. A spray groove facing the grinding wheel is provided on one side of the outer wall of the spray pipe.

[0013] Furthermore, a collection hole is provided on the top of the base, and a waste collection trough is connected to the bottom of the collection hole.

[0014] The beneficial technical effects of this utility model are as follows:

[0015] This invention features a splash-proof mechanism that rotates slowly in sync with the guide wheel. As the collection net rotates, it gathers splashed debris, large-diameter impurities, and other hazardous objects. When the net rotates to one side of the guide wheel, the debris is propelled forward and falls onto the guide wheel by a lever and a spiral spring. The guide wheel then rolls the debris onto the side of the guide wheel cover, where it falls into the waste collection trough for storage. This method significantly reduces the danger posed by waste being thrown out of the equipment. Attached Figure Description

[0016] Figure 1 This is a front view schematic diagram of a preferred embodiment of a centerless external cylindrical grinding protection structure according to the present invention;

[0017] Figure 2 This is a rear view schematic diagram of a preferred embodiment of a centerless external cylindrical grinding protective structure according to the present invention;

[0018] Figure 3 This is a rear view of a preferred embodiment of a centerless external cylindrical grinding protective structure according to the present invention;

[0019] Figure 4 This is a schematic diagram of the structure after the guide wheel guard and the grinding wheel guard are separated in a preferred embodiment of the protective structure for a centerless external cylindrical grinder according to this utility model;

[0020] Figure 5 This is a schematic diagram showing the connection relationship between the guide wheel and the splash-proof mechanism in a preferred embodiment of a centerless cylindrical mill protective structure according to the present invention;

[0021] Figure 6 This is a schematic diagram of the striking component in a preferred embodiment of a centerless external cylindrical grinder protective structure according to the present invention;

[0022] Figure 7 In a preferred embodiment of the centerless external cylindrical grinding protective structure according to this utility model, Figure 2 Enlarged view of point A in the middle.

[0023] The annotations in the attached figures are explained as follows:

[0024] 1. Machine base; 2. Guide wheel guard; 3. Grinding wheel guard; 4. Splash prevention mechanism; 401. Transmission assembly; 402. Rotating frame; 403. Collection net; 404. Striking assembly; 404a. Alarm lever; 404b. Spring cover; 404c. Rotating shaft; 404d. Spiral spring; 5. Inlet and outlet guards; 6. Coolant pipe; 601. Spray pipe; 602. Spray tank; 7. Grinding wheel; 8. Guide wheel; 9. Waste collection tank; 10. Pallet; 11. Grinding parts. Detailed Implementation

[0025] To enable those skilled in the art to understand the technical solution of this utility model more clearly, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings, but the implementation of this utility model is not limited thereto.

[0026] like Figures 1-7 As shown, the protective structure for a centerless external cylindrical mill provided in this embodiment includes a base 1. Guide wheel covers 2 and grinding wheel covers 3 are fixedly installed on both sides of the top of the base 1. A guide wheel 8 is rotatably installed inside the guide wheel cover 2, and a grinding wheel 7 is rotatably installed inside the grinding wheel cover 3. An anti-splash mechanism 4 is provided between the guide wheel 8 and the grinding wheel 7. A support plate 10 is provided directly below the anti-splash mechanism 4. Inlet and outlet covers 5 are provided on both sides of the support plate 10. The anti-splash mechanism 4 includes a rotating frame 402 that is rotatably installed with the inlet and outlet covers 5 via bearings. A collection net 403 is fixed around the inner wall of the rotating frame 402. A transmission assembly 401 is sleeved on the transmission shaft of the rotating frame 402. A striking assembly 404 is fixed on one side of the outer wall of the inlet and outlet covers 5.

[0027] In the above structure, the grinding wheel 7 is connected to a high-speed drive motor, and the guide wheel 8 is connected to an adjustable frequency drive motor. The power is transmitted to the guide wheel 8 through the reduction mechanism so that it can rotate and provide guidance and rotation for the grinding workpiece 11.

[0028] The collecting net 403 is a flexible net that rotates synchronously with the guide wheel 8. It can reduce the splashing of coolant during spraying and collect the waste debris splashed out with the coolant to avoid contaminating the equipment. At the same time, it can also reduce the kinetic energy of the debris thrown out at high speed.

[0029] The transmission assembly 401 consists of a belt and pulleys, with two sets of pulleys respectively mounted on the shaft of the rotating frame 402 and the shaft of the guide wheel 8.

[0030] The striking assembly 404 includes a spring cover 404b fixed to the outer wall of the inlet / outlet guard 5. A spiral spring 404d is compressed inside the spring cover 404b. A rotating shaft 404c is welded and fixed to the center of the spiral spring 404d. The rotating shaft 404c passes through the spring cover 404b and is rotatably mounted. A push lever 404a is screwed to one end of the rotating shaft 404c. The push lever 404a is in movable contact with the rotating frame 402.

[0031] In the above structure, when the frame rod of each set of rotating frames 402 rotates, the striking component 404 will squeeze the dialing rod 404a, causing it to rotate under the action of the spiral spring 404d. After the frame rod disengages from the dialing rod 404a, the rebound effect causes the dialing rod 404a to strike the next set of frame rods, causing the collection net 403 installed on the frame rod to vibrate, raising the collected waste and dropping it onto the guide wheel 8.

[0032] A grinding part 11 is placed on the pallet 10, which is in frictional contact with both the grinding wheel 7 and the guide wheel 8. The grinding part 11 is fed onto the pallet 10 by the feeding mechanism.

[0033] A coolant pipe 6 is also fixed through the inner wall of the inlet / outlet shroud 5. One end of the coolant pipe 6 is connected to a spray pipe 601. A spray groove 602 facing the grinding wheel 7 is provided on one side of the outer wall of the spray pipe 601. The spray groove 602 can reduce the spray speed of the high-pressure coolant and reduce splashing. The rotation position of the collection net 403 is higher than that of the spray pipe 601.

[0034] The top of the base 1 is provided with a collection hole, and the bottom of the collection hole is connected to a waste collection tank 9, which stores waste and waste liquid.

[0035] The working principle of this device is as follows:

[0036] When in use, this device is connected to an external power supply and an external control device.

[0037] The grinding part 11 is fed in from one side of the feed and discharge cover 5. The grinding wheel 7 and the guide wheel 8 rotate synchronously under the drive of the power source. The grinding wheel 7 rotates at high speed, while the guide wheel 8 rotates at low speed after being reduced by a reducer. It also drives the grinding part 11 to feed. The grinding part 11 moves along the support plate 10 and rotates in the opposite direction under the action of the guide wheel 8 and the grinding wheel 7. The grinding wheel 7 performs outer ring grinding operation. At the same time, the coolant pipe 6 injects external grinding fluid, which flows along the spray pipe 601 and is sprayed from the spray tank 602 onto the outer wall of the grinding wheel 7.

[0038] During the grinding process, the guide wheel 8 drives the transmission assembly 401 via one axle to drive the rotating frame 402 to rotate synchronously at a low speed. The rotating frame 402 drives four sets of collecting nets 403 to rotate 15-20cm above the grinding workpiece 11. The outer wall of the nets has a 2mm gap from the grinding wheel 7 and the guide wheel 8, which shields the splashed grinding fluid, collects the debris from the splashes, and provides safety protection for large flying particles. Each time the rotating frame 402 rotates to the striking assembly, it drives the paddle... The lever 404a rotates and compresses the spiral spring 404d inside the spring cover 404b. After the wall rod of the rotating frame 402 disengages from the lever 404a, the lever 404a quickly rebounds and strikes the next set of rotating frames 402, thereby lifting the debris on the collection net 403. Since the collection net 403 rotates, the debris slides off the guide wheel 8 after being lifted. The guide wheel 8 rotates in the forward direction and can continue to transport the debris to the bottom of the guide wheel cover 2, and then enter the waste collection trough 9 for centralized storage.

[0039] By adopting the above structure, the damage caused by coolant, waste chips, and fragments of the grinding wheel exploding during the grinding of the grinding part 11 can be greatly reduced.

[0040] The above are merely further embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope disclosed by this utility model, based on the technical solution and concept of this utility model, shall fall within the protection scope of this utility model.

[0041] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this application is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail in this application.

Claims

1. A protective structure for a centerless cylindrical mill, comprising a base (1), wherein a guide wheel cover (2) and a grinding wheel cover (3) are fixedly installed on both sides of the top of the base (1), a guide wheel (8) is rotatably installed inside the guide wheel cover (2), a grinding wheel (7) is rotatably installed inside the grinding wheel cover (3), an anti-splash mechanism (4) is provided between the guide wheel (8) and the grinding wheel (7), a support plate (10) is provided directly below the anti-splash mechanism (4), and inlet and outlet covers (5) are provided on both sides of the support plate (10), characterized in that: The splash-proof mechanism (4) includes a rotating frame (402) that is rotatably mounted to the inlet / outlet cover (5) via a bearing. A collection net (403) is fixed around the inner wall of the rotating frame (402). A transmission assembly (401) is sleeved on the transmission shaft of the rotating frame (402). A striking assembly (404) is fixed on one side of the outer wall of the inlet / outlet cover (5).

2. The protective structure for a centerless cylindrical grinder according to claim 1, characterized in that: The transmission assembly (401) consists of a belt and pulleys, with two sets of pulleys respectively mounted on the shaft of the rotating frame (402) and the shaft of the guide wheel (8).

3. The protective structure for a centerless cylindrical grinder according to claim 2, characterized in that: The striking assembly (404) includes a spring cover (404b) fixed to the outer wall of the feed / discharge cover (5). A spiral spring (404d) is compressed inside the spring cover (404b). A rotating shaft (404c) is welded and fixed at the center of the spiral spring (404d). The rotating shaft (404c) passes through the spring cover (404b) and is rotatably mounted.

4. The protective structure for a centerless cylindrical grinder according to claim 3, characterized in that: The dial lever (404a) is screwed to one end of the outer side of the rotating shaft (404c), and the dial lever (404a) is in contact with the rotating frame (402).

5. The protective structure for a centerless cylindrical grinder according to claim 4, characterized in that: The tray (10) holds a grinding part (11) that is in frictional contact with both the grinding wheel (7) and the guide wheel (8).

6. The protective structure for a centerless cylindrical grinder according to claim 5, characterized in that: A coolant pipe (6) is also fixed through the inner wall of the inlet / outlet cover (5). One end of the coolant pipe (6) is connected to a spray pipe (601). A spray groove (602) facing the grinding wheel (7) is provided on one side of the outer wall of the spray pipe (601).

7. The protective structure for a centerless cylindrical grinder according to claim 6, characterized in that: The top of the base (1) is provided with a collection hole, and the bottom of the collection hole is connected to a waste collection trough (9).

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